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楼主 |
发表于 2012-8-25 01:10
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STG44突击步枪 发表于 2012-8-24 23:27 
噗,99%的硝化棉,这不就成单基药了
历史倒车不是这么开的,有没有搞错! ...
似乎他说的没错
" During World War II, the primary USN propellant was SPD in a multi-tube form made up of 99.5% nitrocellulose (12.6% N), 0.5% diphenylamine. The USN used a flat, short cylindrical grain design that usually had seven perforations with the websize varying from 0.023 in (0.58 mm) for the short 3 in (7.62 cm) gun to about 0.174 in (4.42 mm) for the 16 in (40.64 cm) guns. SPD had a good safety record partly due to the harder-to-ignite and slow burning nature of its single-base nature and partly due to the quality of its manufacturing process.
"
链接http://www.warships.com.cn/navweaps/tech-100.htm |
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